氟化磷酸盐[1]是由氟离子(F−
)和磷酸根(PO3−
4)构成的混合阴离子化合物。自然界中常见的氟化磷酸盐矿物有氟磷灰石(氟化三磷酸五钙,Ca5(PO4)3F)、氟磷镁石((Mg,Fe)2PO4F)等。人工合成的MIMIIPO4F(MI=Na, Li;MII=Fe, Mn, Co, Ni)可用于电化学的正极材料。[2]
合成
氟化磷酸盐可由磷酸二氢铵-氟化钠和金属盐体系的固相法合成,或通过含磷酸-氟化钠(氢氟酸[3])的水热体系反应得到。[4]反应中也会加入其它试剂,如硼酸作为矿化剂。[5]
参考文献
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